The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 1992
Filed:
Jan. 18, 1991
Maurice K LeBegue, Fairmont, WV (US);
Jon C Blackstock, Fairmont, WV (US);
Clarence H Woodford, II, Fairmont, WV (US);
Leonard M Sanders, Fairmont, WV (US);
Tamrock World Corporation, N.V., Curacao, AN;
Abstract
A cylindrical drum assembly is rotatably mounted transversely on the front of the boom member of a continuous miner. The drum assembly comprises a pair of independently operable drum sections. Each drum section is driven through an input shaft connected to a motor. The drum sections may be connected by a coupler to form a unitary drum assembly which may be operated by only one of the motors. Torque is transmitted from the input shafts to a bevel gear rotatably supported in the drum section. The bevel gear is nonrotatably connected to a sun gear which in turn drives a plurality of planetary gears connected to a cylindrical planetary cage with a bore defining an inner surface. The cage is connected to a cylindrical inner housing on its outer surface and to an output shaft on its inner surface through a cylindrical shear coupler. A puller shaft is provided to remove the output shaft and the shear coupler.